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Forum Discussion
Solved
RN214 NAS not shutting down with UPS power is low or zero
My UPS seems to have started having problems but it shown up a more serious challenge with my RN214 (on latest firmware) - it's not shutting down when the UPS level drops below the threshold. I've ha...
Sandshark wrote:
StephenB wrote:
https://networkupstools.org/docs/user-manual.pdf wrote:
The exact behavior depends on the specific device, and is related to:
• battery.charge and battery.charge.low
• battery.runtime and battery.runtime.lowIt doesn't sound like it triggered by a particular UPS command (at least not in all cases).
Those are the things you can normally select to determine when the UPS will send the shut-down command.
Well, as I said the manual isn't very clear on tnis point. But my impression from the code is that the NUT software is first translating the UPS messages into it's own set of generic state parameters, and then monitoring that state. I think it then issues it's own shutdown command based on the state changes - at least for some UPS. But I decided against spending the time to figure out exactly what is was doing. There is quite a bit of vendor-specific code in it.
StephenB wrote:https://networkupstools.org/docs/user-manual.pdf wrote:
The exact behavior depends on the specific device, and is related to:
• battery.charge and battery.charge.low
• battery.runtime and battery.runtime.lowIt doesn't sound like it triggered by a particular UPS command (at least not in all cases).
Those are the things you can normally select to determine when the UPS will send the shut-down command.
Sandshark wrote:
StephenB wrote:
https://networkupstools.org/docs/user-manual.pdf wrote:
The exact behavior depends on the specific device, and is related to:
• battery.charge and battery.charge.low
• battery.runtime and battery.runtime.lowIt doesn't sound like it triggered by a particular UPS command (at least not in all cases).
Those are the things you can normally select to determine when the UPS will send the shut-down command.
Well, as I said the manual isn't very clear on tnis point. But my impression from the code is that the NUT software is first translating the UPS messages into it's own set of generic state parameters, and then monitoring that state. I think it then issues it's own shutdown command based on the state changes - at least for some UPS. But I decided against spending the time to figure out exactly what is was doing. There is quite a bit of vendor-specific code in it.
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